U-joint change

Have you looked at the drive shaft? If you have bolt-on caps, it's a cinch. Just remove the cap holding bolts, drop out the entire universal and replace with a new one. You don't have to pull the individual caps off. If your bearing caps are pressed in and held with either internal or external snap rings, you'd be better to pull the shaft all the way out. Whatever you do, mark the position of the expansion spline before you turn a bolt. If you don't get this spline back together correctly, the mis-aligned universals can cause drive shaft vibrations that will cause premature failure in the new universals. If you have to press out the universal caps to remove them and the drive shaft, you might consider paying a shop to do it. I've had some come out and go back together very easily, and some that were just about impossible to do without a portable hydraulic press. Good luck.